Quick definitions from WordNet (window)▸ noun:a framework of wood or metal that contains a glass windowpane and is built into a wall or roof to admit light or air▸ noun:a transparent opening in a vehicle that allow vision out of the sides or back; usually is capable of being opened▸ noun:a transparent panel (as of an envelope) inserted in an otherwise opaque material▸ noun:(computer science) a rectangular part of a computer screen that contains a display different from the rest of the screen▸ noun:an opening in the wall of a building (usually to admit light and air) ("He stuck his head in the window")▸ noun:an opening that resembles a window in appearance or function ("He could see them through a window in the trees")▸ noun:the time period that is considered best for starting or finishing something ("The expanded window will give us time to catch the thieves")▸ noun:a pane in a window ("The ball shattered the window")
▸ Also see window